an upper region including: (i) a torso, (ii) a pair of arm assemblies coupled to the torso, and (iii) a head and neck assembly coupled to the torso and having a neck portion and a head portion coupled to the neck portion, and wherein the head portion includes:
a head housing assembly having: (i) a geometric center, (ii) a first shell with a first point located on an outer surface of the first shell, and (iii) a second shell with a second point located on the outer surface of the second shell,
a recess formed in the head housing assembly, and wherein the recess includes a third point that is positioned closer to the geometric center of the head housing assembly in comparison to both the first and second points, and
a light emitter configured to emit light to illuminate a portion of the recess.